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* wasmtime: install a newer version of OCaml
* Update Dockerfile
* wasmtime: move environment setup to build.sh
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* wasmtime: provide OCaml packages for build
In order to build the WebAssembly spec interpreter, these packages are needed.
* wasmtime: remove ocamlbuild as a dependency
The oss-fuzz-base image is using Ubuntu 16.04.7 and the `ocaml-nox` package at this version contains `ocamlbuild`.
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In bytecodealliance/rfcs#10, we have outlined a process by which we're
switching to a new compiler backend by default. The first step in this
process is to switch our fuzzing targets to use the new backend and wait
for any issues.
This PR adds the Cargo feature that enables the new backend in all
fuzzing targets.
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* Wasmtime: remaps for coverage
* right loop fixup
* Adding a comment
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* Fill in main_repo for several projects.
* Add some go repos.
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In [Wasmtime](https://github.com/bytecodealliance/wasmtime), we're
planning to transition eventually to a new x86 backend. We recently
added a fuzz target for this backend that differentially fuzzes against
a Wasm interpreter.
This PR adds the new backend's fuzz target and adds a contact (me) to
the notification list.
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Wasmtime uses
[regalloc.rs](https://github.com/bytecodealliance/regalloc.rs), a
register allocator written in Rust that was developed for use in
Cranelift (but is also an independently-usable crate). While it will be
indirectly fuzzed by wasmtime itself once we start fuzzing the new
backends that use it, we should also fuzz it directly, since it exposes
targets just for this. The regalloc fuzzing makes use of a symbolic
checker as an oracle for allocation results, so should be relatively
high-quality. This PR enables the `bt` (backtracking) allocator's fuzz
target, as this is the default allocator.
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* [infra] Add support for custom sanitizer options in run_fuzzer.
* address review feedback
* fix presubmit warnings
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* Add `handle_segv =1` to Wasmtime's options
This is an attempt to handle #4264
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* Add wasm-tools repository to wasmtime project
This commit expands the fuzzers run under the Wasmtime project to
include those in the https://github.com/bytecodealliance/wasm-tools
repository. This includes various parsing for utilities used by Wasmtime
itself but also generally useful for other Rust projects! The
maintainers of the wasm-tools repository are also all currently all on
the notification list for Wasmtime fuzz bugs as well.
* Load all corpuses from wasmtime-libfuzzer-corpus
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* Use LABEL in place of MAINTAINER
* Remove LABEL maintainer from Dockerfiles
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* Skip coverage build in CI for non C/C++ projects.
Fixes https://github.com/google/oss-fuzz/issues/4074
* Test wasmtime.
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This will prevent build failures like
https://oss-fuzz-build-logs.storage.googleapis.com/log-5a0b58fe-4a35-46d5-b4d2-221905e7d208.txt
in the future.
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This enables not only the binaryen-using fuzz targets, but also the peepmatic fuzz targets (which is necessary after https://github.com/bytecodealliance/wasmtime/pull/1727).
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* Simplify rust project setup.
- Add rust and cargo-fuzz in base builder.
- Set RUSTC_BOOSTRAP to make ASan available.
- Set RUSTFLAGS and C,CXXFLAGS properly.
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Accounts for changes in
https://github.com/bytecodealliance/wasmtime/pull/1343 where
compilation of all the fuzzers now requires extra features to be
enabled.
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This fixes typo mistakes from #3335 where we actually want the opposite
of the current defaults, not the current set of defaults!
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I had used a site-specific alias for @tschneidereit in my last commit; he is unable to login to monorail with it. This corrects to an alias that should work. Apologies for the oversight.
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This is an attempt to apply the suggestions from #3316 to the fuzzing
infrastructure for the `wasmtime` target. This will hopefully allow the
delivery of SIGSEGV and SIGILL signals to the `wasmtime` program itself.
These are expected signals when executing wasm code so we don't want the
fuzzer to treat all forms of the signal as a fatal error.
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Following up on internal bytecodealliance/wasmtime discussion, this removes the security@bytecodealliance.org alias from the wasmtime notification list and adds @tschneidereit.
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This commit does for Rust code what the `CFLAGS` are configured to do
for C++ code, which is to enable debuginfo (but line tables only) as
well as forcing frame pointer generation to all assist in generating
stack traces.
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* [infra] Introduce "language" attribute in the project.yaml (#3297).
* follow up
* enable the attribute for more projects
* trailing newline
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This is an attempt to fixup the errors found on #3292. Although I'm not
certain where the error was coming from this switches the Rust
installation to being in `PATH` by default so there's no need to
`source` any scripts to get access to the Rust compiler.
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